Slane Castle water level

Name: Slane Castle water level (Office of Public Works (waterlevel.ie))
Creator: Office of Public Works (waterlevel.ie)
License: https://creativecommons.org/licenses/by/4.0/

River gauge, Boyne, Meath, Ireland

Directions

Within the normal range

Water level

0.69m Steady over the last 24 hours

Measured 17 Oct 2026, 10:30 GMT+1 (21 min ago)

History

7 days

Water level Top of normal rangeBottom of normal range

What this means

The Boyne at Slane Castle is at 0.69 m, within its typical range.

The usual range here runs from 0.48 m to 1.52 m.

It has barely moved over the past 24 hours.

Autumn rain usually starts to lift rivers again after the summer low.

Compared with the normal range the agency publishes for this gauge. How to read levels

Key numbers

Normal range: 0.48 m – 1.52 m
Highest on record: 2.87 m

Fishing and paddling

Paddlers and anglers can expect the river much as they know it, though a heavy shower upstream can change that within hours.

Flood alerts and warnings come from the OPW and Met Éireann.

About the Boyne

The River Boyne is a river which flows through Leinster, Ireland. It is about 112 kilometres (70 mi) long. The Boyne rises near Carbury, County Kildare and flows north-east along the border with County Offaly before entering County Meath to reach the Irish Sea between Mornington, County Meath and Baltray, County Louth.

Weather at the gauge

Rain in the last 3 days: 8.3 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 12° 4° – Wind 12 km/h

18 Sun 12° 4° – Wind 10 km/h

19 Mon 12° 3° 0.6 mm, 37% Wind 16 km/h

20 Tue 13° 8° – Wind 18 km/h

21 Wed 10° 5° 35 mm, 47% Wind 33 km/h

22 Thu 9° 3° 1.2 mm, 46% Wind 21 km/h

23 Fri 8° 4° 13 mm, 63% Wind 46 km/h

Forecast: Open-Meteo

Sunrise 07:57 AM Sunset 06:27 PM Daylight 10 hr, 30 min First quarter 39%

Map

Other gauges on the Boyne

Gauge	Level	Compared with normal	24 hours	Distance
BlackcastleRiver gauge, Boyne	0.43 m	Normal	±0	9.7 km
Navan WeirRiver gauge, Boyne	0.60 m	Normal	±0	10 km
TrimRiver gauge, Boyne	0.82 m	Normal	±0	23 km
Boyne AqueductRiver gauge, Boyne	0.55 m	Normal	−0.01 m	39 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
LiscartanRiver gauge, Blackwater (Kells)	0.55 m	Normal	−0.02 m	11 km
Duleek D/SRiver gauge, Nanny	0.71 m	Normal	−0.02 m	12 km
NewfieldRiver gauge, Ushers Stream	0.11 m	Normal	±0	15 km
BurleyRiver gauge, Dee	0.56 m	Normal	−0.02 m	16 km
FyanstownRiver gauge, Moynalty	0.94 m	Normal	−0.05 m	16 km
Charleville WeirRiver gauge, Dee	0.31 m	Normal	±0	19 km
MansfieldstownRiver gauge, Glyde	0.31 m	Normal	±0	22 km

Questions and answers

What is the typical range for the Boyne at Slane Castle?

The Office of Public Works (waterlevel.ie) gives a typical range of 0.48 m to 1.52 m for this gauge.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 0.69 m on the gauge does not mean the water is that deep.

What is the water level of Slane Castle today?

On 17 Oct 2026, 10:30 GMT+1, the water level was 0.69 m. Steady over the last 24 hours.

Is Slane Castle rising or falling?

Steady over the last 24 hours.

Is the level of Slane Castle normal?

Within the normal range. Compared with the normal range the agency publishes for this gauge.

What is the highest water level ever recorded at Slane Castle?

The highest level on record is 2.87 m.

How often is this data updated?

The Office of Public Works (waterlevel.ie) publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Office of Public Works (waterlevel.ie)
Station code: opw:07012 (Agency page)
Coordinates: 53.70721, -6.56242 (WGS84)
Vertical datum: OD Malin Head OSGM15
Gauge zero: 14.008 m
Update interval: every 15 minutes
Licence: CC BY 4.0. Contains Irish Public Sector Information licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence (source waterlevel.ie - provided by the Office of Public Works)

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	0.69 m	2026-10-17 09:30	Provisional

Download

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<iframe src="https://nivelmap.com/embed/23684?lang=en" width="360" height="230" style="border:0;max-width:100%" loading="lazy" title="Slane Castle water level"></iframe>

How to cite

Office of Public Works (waterlevel.ie): Slane Castle (opw:07012). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/ireland/meath/slane-castle

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer